68 selected
- Cadillac
- Caen
- Calais
- California
- Calw
- Camberg
- Cambodia
- Cambrai
- Cameroon
- Canada
- Cape Verde
- Cappadocia
- Carcassonne
- Caria
- Carolingian Empire
- Carpentras
- Carteia
- Carthage
- Cassel (Kassel)
- Castelnaudary
- Castile
- Castile and León
- Catalonia
- Cayman Islands
- Celebes (Sulawesi)
- Celtic coins
- Centraal-Afrikaanse Republiek
- Central African Republic
- Central American Republic
- Ceylon
- Chad
- Cham
- Charleville & Sedan
- Charlieu
- Château-Regnault
- Chécy-Châteauneuf-Sully-Vitry
- Chihuahua
- Chile
- China
- Chinese Soviet Republic
- Chur
- Cilicia
- Cleves
- Coburg
- Cochin
- Coesfeld
- Colombia
- Comoros
- Comtat Venaissin
- Congo Freestate
- Congo-Brazzaville
- Congo-Kinshasa
- Connecticut
- Cook Islands
- Costa Rica
- Cottbus
- Courland
- Crete
- Crimea
- Croatia
- Cuba
- Culemborg
- Culiacan
- Culion Island
- Curaçao
- Cyprus
- Czech Republic
- Czechoslovakia
- Not filled in